: If buying a finished piece, ensure the prongs are secure and the metal matches the quality of the stone. Gem Buyers Guide to Thailand - Books - Amazon.com
: This refers to internal inclusions. While diamonds are valued for flawlessness, inclusions in colored stones often prove they are natural rather than synthetic.
: For significant purchases, always request a report from a recognized gemological laboratory like the GIA or AGS . These reports verify identity, origin, and whether the stone has been treated. buy precious gems
: In specialized markets (like Sri Lanka), the initial price is often inflated by 50% or more.
: Sites like James Allen are recommended for their transparent policies and high-quality loose stone selections. 4. Expert Tips for the Best Purchase : If buying a finished piece, ensure the
: Lab-grown gems have the same chemical properties as natural ones but much lower resale value. Beware of "bargains" that seem too good to be true. 3. Choosing Your Buying Location
: The precision with which a stone is shaped to reflect light. A high-quality cut maximizes the gem's "fire" and brilliance. : For significant purchases, always request a report
: The measurement of the gem's weight. Prices often jump significantly at whole-carat milestones (e.g., 1.0ct, 2.0ct). 2. Verify Authenticity & Treatments